| 摘要 |
PURPOSE:To obtain a sticky grease having good heat resistance and good lubricating properties without adding any thickener by mixing a specified perfluoroalkyl-modified silicone oil with a specified powdery organopolysiloxane in a specified ratio. CONSTITUTION:This composition is prepared by mixing 100 pts.wt. perfluoroalkyl-modified silicone oil represented by the formula (wherein R<1> is a 1-10C perfluoroalkyl; R<2> is a monovalent group selected from among a 1-12C alkyl, alkenyl and (substituted) aryl; a and b are each 0 or 1; m is 0-1000; n is 5-1000; m+n=5-1000; and R<1> accounts for 5-50mol% of the total substituents) and having a viscosity of 100-100000cSt at 25 deg.C with 20-3000 pts.wt. powdery organopolysiloxane having a molar ratio of R<3>3SiO1/2 units (wherein R<3> is an alkyl, alkenyl or aryl) to SiO2 units of 0.5-0.95. |
